Rotary motor



No. 6|3,852. v Patented Nov. 8, |898. A. CAMPBELL & L. C. LOUNSBERRY.

ROTARY MOTOR.

(Appucmon med oct. 2s, 1897A N u M o d e l To all whom it muy concern:

UNITED STATES PATENT OFFICE.

ALEXANDER CAIWIPBELL AND LAVRENCE CURVIN LOUNSBERRY, OF ARCHER, FLORIDA.

ROTARY IVIOTOR.

SPECIFICATION forming part of Letters Patent No. 613,852, dated November 8, 1898.

Application filed October 28, 1897.

Be it known that we, ALEXANDER CAMP- BELL and LAWRENCE CUEvIN LoUNsBEEEY, citizens of the United States, residing at Archer, in the county of Alachua and State of Florida, have invented certain new and useful Improvements in Rotary Motors, of which the following is a full and complete specification, such as will enable those skilled in the art to which it appertains to make and use the Thisinvention relates to rotary motors; and the object thereof is to provide an improved device'of this class which is simple in construction and operation and by means of which great power may be secured with a minimum amount of steam.

The invention is fully disclosed in the following specification, of which the accompanying drawings form a part, in Which- Figure l is a transverse section of our improved rotary engine, taken transversely on the main power-shaft and the central piston; and Fig. 2, a section at right angles thereto on the line 2 2 of Fig. 1.

In the drawings forming part of this speciiication the separate parts of our improvement are designated by the same numerals of reference in each of the views, and in the practice of our invention we provide a base 5, on which is formed or secured a cylindricalv casing 6, which is provided at one end with an end piece 7, which is preferably formed integrally therewith, and at the opposite end with a detachable plate 8. The casing 6 is provided centrally with a ,cylindrical pistonchamber 9, in which is mounted a piston 10, the general form of which is that of a cylinder, and said piston is mounted on a shaft 12, which is provided at one end with a balance-wheel13 and at the other end with a belt or power wheel 14.

Arranged concen trically of the piston-chamber is an annular chamber 15, which serves as an exhaust-chamber, and around the annular chamber 15 and concentrically thereof is a steam-supply chamber 16, and communicating with the steam-supply chamber 16,` preferably at the top thereof, is a steam-pipe 17, andthe exhaust-chamber 15 is in com- Serial No. 656,662. (No model.)

munication, preferably at the lower side thereof, with an exhaust-pipe 18.

Adjacent to one side of the steam-supply pipe 17 or its communication with the chamber 16 and directly opposite said point the exhaust-chamber 15 is divided by transverse walls 19, in each of which are two ports or passages 20, which form communications between the central piston-chamber and the outer steam-supply chamber, and between the points where these ports or passages communicate with the piston-chamber 9 and at each side of said piston are spring-operated Valves or abutments 22, which are set into the walls of the chamber 9 and which are adapted to press upon the piston 10 and which are of the same length as said piston.

Set into the outer surface of the inner wall of the steam-chamber 16 and at directly opposite points are two transverse valves 23 and 24, which are adapted to control said ports or passages, and these valves are connected in both directions by wire cords or bands 25, and connected with the outer wall of the circular casing adjacent to the upper ports or passages 20 is a segmental gear 26, and passing through said casing adjacent to said gear is a lever 27, which is pivotally supported at 28 and adapted to operate the valve 23 and which is provided with the usual locking-lever 29, which is adapted to engage with the segmental gear 26, and by operating the lever 27 the valves 23 and 24 may both be operated, as will be readily understood, said valves being moved so as to cover one of the ports or passages 2O when the lever is in the position shown in Fig. 1, and when said lever is raised said last-named ports or passages will be closed an`d the other two will be opened.

The shaft 28, with which the lever 27 is connected, extends through the casing and is provided with lugs or projections 29a, which en'- ter a transverse groove in the valve 23, and by moving the lever the valves 23 and 24 may also be moved by reason of the fact that they are connected by the cords or bands 25.

We also provide at directly opposite points in the wall of the piston-chamber 9 steam-4 exhaust ports 30, and it will be observed that the wall of the piston-chamber 9 is provided adjacent to each of the ports or passages 2O with steam-chambers 33, which are of the same length as said ports or passages and the piston 10, one of these steam-chambers being provided for each of said ports or pas* sages, and it will also be observed that the piston 10 is provided at its opposite sides with longitudinal grooves 34, into which the steam is projected, and the valve 22 prevents the steam from turning the piston in the wrong direction. The end of the piston is also provided with circular packings,as shown at 35, and the operation will be readily understood from the foregoing description when taken in connection with the accompanying drawings and the following statement thereof.

When the lever 27 is in the position shown in Fig. l, the steam enters through the pipe 17 into the chamber 16 and passes through the upper left-hand port or passage 2O and strikes the piston at 31, and at the same time the steam enters through the right-hand port or passage 2O at the bottom or lower righthand side and also strikes the piston at 32, and said piston is revolved to the left, and the steam is cut oif by the revolving piston, and the steam caught in the chambers 33 has a chance to expand before it is exhausted, and as the piston revolves the steam is exhausted through the ports or passages 30, and this operation continues as long as it is desired to revolve the piston to the left, and whenever it is desired that said piston should revolve to the right the lever 27 is raised and the left-hand port or passage 20 at the upper and the right-hand port or passage 20 at the lower side are cut off or closed, and the steam passes through the other ports or passages, and the piston is revolved to the right.

Our improvement is simple in construction and operation and perfectly adapted to accomplish the result for which it is intended, and by reason of the simplicity of the construction of our improved rotary engine it is not liable to get out of order or to frequently need repair.

It will also be apparent that changes in and modifications of the construction herein described may be made without departing from the spirit of our invention or sacrificing its advantages.

Having fully described our invention, We claim as new and desire to secure by Letters Patentl. A rotary engine, comprising a cylindrical casing, a piston-chamber formed centrally therein, a shaf t which passes centrally through said piston-chamber, a piston mounted on steam-supply chamber around said exhaustchamber, means for admitting steam into said steam-supply chamber, and means for admitting steam from said supply-chamber into said piston-chamber, consisting of separate pairs of ports or passages arranged on the opposite sides of said piston-chamber, a spring-operated abutment mounted between each pair of said ports or passages and adapted to bear on said piston, said ports or passages on each side being controlled by a single valve, substantially as shown and described.

2. Arotaryengine, comprisingacylindrical casing, a piston-chamber formed centrally therein,a shaft which passes centrally through said piston-chamber, a piston mounted on said shaft within said chamber, said piston being substantially cylindrical in form, and being provided with longitudinal grooves in its opposite sides, the bases of which are segmental in cross-section, said casing being also provided with an exhaust-chamber around the piston-chamber and in communication therewith at its opposite sides, an annular steam-supply chamber around said exhaustchalnber, means for admitting steam into said steam-supply chamber, and means for admitting steam from said supply-chamberinto said piston-chamber, consisting of separate pairs of ports or passages arranged on the opposite sides of said piston-chamber, a spring-operated abutment mounted between each pair of said ports or passages and adapted to bear on said piston, said ports or passages on each side being controlled by a single valve, and said valves being connected and adapted to be operated by a lever connected with said casing, and said exhaust-chamber being provided with an escape port or passage, substantially as shown and described.

In testimony that we claim the foregoing as our invention we have signed our names, in presence of the subscribing witnesses, this 18th day of October, 1897.'

ALEXANDER CAMPBELL. LAWRENCE CURVIN LOUNSBERR-l'.

W'itnesses:

DARIUs W. CLARK, Il. B. BLOUNT.

ICO 

